//Calculate a + b 
//Input
//The input will consist of a series of pairs of integers a and b,separated by a space, one pair of integers per line. 
//Output
//For each pair of input integers a and b you should output the sum of a and b in one line,and with one line of output for each line in input.
//Sample Input
//1 5
//Sample Output
//6

#include <iostream>

using namespace std;

int main()
{
	int a;
	int b;
	while(cin >> a >> b)
	{
		cout << a + b << endl;
	}
	return 0;
}